Tag Archives: wav

We have a Sony FS700 hanging around the Digital Anarchy office for shooting slow motion and 4K footage to test with our various plugins ( We develop video plugins for Premiere Pro, After Effects, Avid, Final Cut Pro, Resolve, etc., etc.) . In order to get 4K out of the camera we had to buy an Odyssey 7Q+ from Convergent Designs (don’t you love how all these cameras are ‘4K – capable’, meaning if you want 4K, it’s another $2500+. Yay for marketing.)

(btw… if you don’t care about the back story, and just want to know how to import a corrupted .wav file into a video editing app, then just jump to the last couple paragraphs. I won’t hold it against you. :-)

The 7Q+ overall is a good video recorder and we like it a lot but we recently ran into a problem. One of the videos we shot didn’t have sound. It had sound when played back on the 7Q+, but when you imported it into any video editing application. no audio.

The 7Q+ records 4K as a series of .dng files with a sidecar .wav file for the audio. The wav file had the appropriate size as if it had audio data (it wasn’t a 1Kb file or something) but importing into FCP, Premiere Pro, Quicktime, or Windows Media Player showed no waveform and no audio.

Convergent Designs wasn’t particularly helpful. The initial suggestion was to ‘rebuild’ the SSD drives. This was suggested multiple times, as if it was un-imaginable this wouldn’t fix it and/or I was an idiot not doing it correctly. The next suggestion was to buy file recovery software. This didn’t really make sense either. The .dng files making up the video weren’t corrupted, the 7Q+ could play it back, and the file was there with the appropriate size. It seemed more likely that the 7Q+ wrote the file incorrectly, in which case file recovery software would do nothing.

So Googling around for people with similar problems I discovered 1) at least a couple other 7Q users have had the same problem and 2) there were plenty of non-7Q users with corrupted .wav files. One technique for the #2 folks was to pull them into VLC Media Player. Would this work for the 7Q+?

YES! Pull it into VLC, then save it out as a different .wav (or whatever) file. It then imported and played back correctly. Video clip saved and I didn’t need to return the 7Q+ to Convergent and lose it for a couple weeks.

Other than this problem the Odyssey 7Q+ has been great… but this was a pretty big problem. Easily fixed though thanks to VLC.